Timed to coincide with Microsoft's much-anticipated BUILD event happening this week, word has just hit the streets that Samsung will be launching two new Windows Phone devices — both running version 7.5 (Mango) of the OS — alongside HTC's massive Titan. All three devices will launch sometime in the fourth quarter of the year — and you can pretty much bet it will be just in time for the holiday shopping season.

The Focus S sports a 4.3-inch Super AMOLED Plus display (almost definitely at a 480 x 800 resolution), a 1.4GHz CPU, and "4G-capable" network speeds. The device also has a 1.3-megapixel front facing camera, as well as an 8-megapixel shooter around back.

The Focus Flash, on the other hand, seems to be a bit more familiar. The device has a 3.7-inch Super AMOLED display, a 1.4GHz CPU (though Samsung hasn't said if these two devices share the same processor), and a 5-megapixel camera. The company seems to be touting the Flash as the cheaper option, so expect a considerably lower price-point.

HTC's entry is the huge, 4.7-inch-screened beast we took a look at at IFA. If you want to see more on that phone, just hit our full coverage right here.

AT&T has also promised to upgrade its older Windows Phone devices to 7.5 this Fall season, calling out the original Samsung Focus, HTC HD7S, Surround, and LG Quantum.

We're currently waiting on images and more info, and will be updating the post as they arrive.

Note: The post has been updated with additional information on the HTC Titan, as well as device availability.